"Nothing to sync" – Sync Solver - Health to Fitbit Review

It says the "last data point" was several days ago, despite its source (Apple Watch) still recording nearly up-to-the-second information. I shouldn't have to delete and reinstall every time it stops being able to read Health data. And yes, deleting and re-installing does seem to fix the issue. The app should have some way of clearing its internal data/cache/settings. After a reinstall the app will re-request Health access and Fitbit account access, and syncing will suddenly work again. Why can't I manually trigger that from within the app?
Review by BitingChaos on Sync Solver - Health to Fitbit.